!!! Overview
[{$pagename}] ([MCA]) is a method of [Multi-Factor Authentication] where one or more the [Authentication Factors] involved are communicated over separate [communication|Telecommunications] [channel]s or [protocols].

The concept is that an [Attacker] would be challenged to determine:
* which channels are being used
* the timing differences of the separate channels would be more difficult to intercept
* requires knowledge on determining the weakness of each channel
This implies for an [attacker] to gain access to the user's account, all involved [channels] must be compromised, which requires a greater [Attack Effort] 

Generally, [{$pagename}] implies a higher [Level Of Assurance] for [Authentication].


!! [{$pagename}] and [Multi-Factor Authentication]
Generally, [{$pagename}] and [Multi-Factor Authentication] is stronger than either of the separate practices.

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [A SUPPORT ARCHITECTURE FOR MULTICHANNEL, MULTIFACTOR AUTHENTICATION|https://www.researchgate.net/publication/242266843_A_SUPPORT_ARCHITECTURE_FOR_MULTICHANNEL_MULTIFACTOR_AUTHENTICATION|target='_blank'] - based on information obtained 2017-07-03 
* [#2] - [Multi-channel, Multi-level Authentication for More Secure eBanking|http://icsa.cs.up.ac.za/issa/2010/Proceedings/Research/10_paper.pdf|target='_blank'] - based on information obtained 2017-07-03